Die for swaging machines



Sept. 12, 1933. s. c. C OSS 1,926,141

DIE FOR SWAGING MACHINES.

Filed March 28, 1929 INVEN TOR.

' W Z. @446 BY k M ATTORNEYS.

Patented Samuel 01' f eas; as

Thisv invention relatesL-toimprQvementS swaging machines and more='particul'arly fin the dies thereof, the object of-theinventionbeing toextend the utility of such machines into 'a far I greater variety ofswaging operations than has heretofore been-possible. I I Machineswaging operations have been usually- I confined to cylindricalorconicalsurfacesq It is' and withdraw it during the continuous-op'em'aon ustomary to introduce the work; to be-swaged of themachin'e;and consequently the work has Ibeen limitedto such shapes as willreadily pass I ly reciprocatingdiesor hammers of the machine. I '15during the continuous operation of the machine.

' press. A typical piece of. work which may be swaged I I lever forautomobiles which has several spherical v dies with finished WOIKtherein;

t pered portion.

4-0 of a swaging machine of the press type as is into the opening-formedbetween the continuous cross section could'be conveniently swaged inthe, I manner described and in machines of the press type an operatorconveniently turns .thQWOIkf while being operatednpon.

The present invention contemplates making the dies separable fromthehammer mmbers of the swaging machinefor the purpose of per: mittingrelative travel therebetween eitherffo'r' introducing or removing'thedies with' the work'" By this means, work pieces having portionsofirregular cross section i vi'z.', having enlargements between theirends) maybe swaged in a swaging in, a press machme is that of a shifterlike protuberances between the ends ofits ta -.g

Further objects and advantages ofthe invention .will becomeapparent fromthe .-follow'-, ing more detailed description,;taken in connection withthe accompanying-drawing, inwhich: Fig-1 is a partial frontielevation ofso'much necessary for tion; I I Fig. 2 is ,a view similar to, -Fig. l',with the work" guiding support removedto more. clearly show the'positionof the dies in. the machine; Fig. 3 is asideelevation, partly insection, or} the apparatus shown. in Fig. 1, also showing the theunderstanding of the "inven Fig. 4 is a detachedfside view ofthedies J:open position; f I Fig. 5 is another detached side view of the dies inclosed position witha piece 'ofunfinished work therein-ready forintroduction in'the press. Referring to Figs. 1 2 and 3, ,the hammer 1members of the press comprises the reciprocable uppermember' 1 operatedin the usual manner of signer jto. *gMo ore, Dropfl-Forgingf' Gom'pany,Springfield. 'Mass a corporation of Massachw' s urias March281-1929.}iSerial 1 1 {J claims-. (01.33am)? they will stand apart-Heretofore, only work of Tuniform or tapering ymanipulating the diesof-the machinew I r I I I} Though in'the illustrations hinged, dies areI I shown, die'sheld'together by pins depending'ffrom the upper die andregistering in holes of the lower die mayjbeused instead. Ihave foundthe hinged dies preferable in connection with the presstype ofswagingmachine. They are'eas- Springfield, fas a such machinesfandthestationary anvihmem; E 'berf2 with attached anvil head 3. Jaws'4 deatachably secure the anvil head 3. in'position} so that it may bereplacedto=provide for 'dies of;

differentfdimensionsi. The die aggregate consists .of two members, alower and-an upper 6'0" 5 as shown Fig. 3 and "also in thedetachedfillustrations Figs. 4' and '5) die, preferably hinged togetheras at '7. The two dies maythus open like jaws (see Fig. 4) to receivethe work pic'efi between their work engaging faces and, when thework isplaced therein,

seen from Fig. 5.

The dies have-back portions (upper and lower) ,for slidably fitting in abearing provided there forfinthe anvil'head 3 of the press. Preferably'the main portion of saidbearing. is formed I I in said anvil head3. a s shownin Fig. 2) so that the greater portion of the die aggregateis received in said lower member of the press,

A dovetail engagementby means of lateral flanges 9 on thelower die andgrooves S'in the anvil headis preferred for holding the dieaggregate'firnrlydown on the anvil head 3 during the-swaging operation. This kindof attachment I renders. it very easy to introduce the dies with thework therein and secures a straight travel' relative to the hammermembers while the press --.is operating'.- I I I I'I heintroductionandwithdraWal of the work by a small angle as can be r apieces isifurther facilitatedby a guiding support right hand griptheworkipiece for convenientlyandwork piece in and out i .1 1 I Iilyinserted betw'een'the hammer members of the v machine, and the-swag'ing operation proceeds gradually from the" rear endto the frontend {of the die, :wherebyhighly finished work pieces may be-produced. Itis evident that in this way no I " pieces of almost any form canbeswagedin the; assembled about the end or", a workpiece and press typeof machine. Y to belprogress'ively advanced therewith between It will beunderstood that various modificathehammer members to cause the hammersand tions of the structure shown may be employed to *dies to act on thework progressively from the equal advantage and that my invention is'not hinged'end of the dies towards their free ends, 80'

to be limited tothe detailsorthe exact embodij the loose assemblage ofthe dies permittingaxial merit illustrated. -With slight modificationsthe movement of thework piece between the dies principle employed may beadapted to the well 'dilringttheintervals whehfthe pressure of theknownrotary type of swaging machine. hammer. members is relieved." Whatis claimed? Q I of 3. The combination with'a swaging' machine .85

1.-A swaging machine whic h comprisesa sta-' w c co se a Stationery ha mtionary horizontally grooved hammerimembemn n'd'q r p at a m m o uppelongated channeled horizontalsupport in align-X 4 we die mbe hitogether ne 1 ment with said groove, a yertically reciprocable T-G and aap il about the hammer member; upperand lcwer'die sections 59 d ijheviiolfkipi BE d 1 0 be p v y 4 hinged at their ends opposite saidsupportand veneed w hier s i h e o ry hammer va'handle secured to saiddi e members whereby member 1' 0911156 t fr e p o at s m to 'saiddiesmay e advanced along said'suppbrt into i en a e t eup'iie d e p o es v yo its d said groove for engagement with said hamme rf e d e d vits freee d, the o e a e 3 'members. a c f1.

: '-ZvThe"combination-with aswa ging machine be we -t m d e n 'v lcomprising relatively freciiorocating hammer 'When.th P h fi i .01

members of upper and lower die members-hinged 0f e agem n -w th di s- -iY together at one end and-adapted-to,-bejloosely= 1 S M R S of the'diespermitting axial movement of the

